Grain-drill.



0. G. RIESKE.

GRAIN DRILL.

APPLICATION FILED MAY 24, 1910. 1,061,499, Patented May 13, 1913.

coLUMDlA PLANOGRMH 130,. WASHINGTON, o. c4

UNITED STATES PATENT OFFICE.

OTTO G. RIESKE, OF ST. LOUIS PARK, MINNESOTA, ASSIGNOR TO MONITOR DRILL COMPANY, A CORPORATION OF MINNESOTA.

GRAIN-DRILL.

Specification of Letters Patent.

Patented May 13, 1913.

Application filed May 24, 1910. Serial No. 563,110.

To all whom it may concern:

Be it known that I, O'rro G. Rinske, ot' St. Louis Park, county of Hennepin, and State of Minnesota, have invented a new and uset'ul Improvement in GrainDrills, ot which the following is a specification.

This invention relates to grain drills ot' the type in which the furrows to receive the seed are formed by opening disks, and in which the seed is directed into the iturrows by seed tubes or conduits mounted with their delivery ends contiguous to the side oit the disks.

The invention has special reference to the mounting ot the seed tube relative to the disk, and consists primarily in so sustaining the tube that it may oscillate or swivel on its longitudinal axis, whereby its toe may be caused to move to and trom the disk, means being provided for holding the toe in yielding engagement with the disk.

In the accompanying drawings: Figure 1 is a side elevation ot a disk-opener and seed tube or conduit constructed in accordance with my invention. Fig. 2 is a top plan view of the same. Fig. 3 is a Vertical longitudinal sectional elevation on the line one of Fig. 2. Fig. 4 is a horizontal section on the line o-b ot' Fig. 3.

Referring to the drawings an opening disk is mounted to rotate on a frame 2, which, in the present instance, is in the t'orm ot a supporting arm 3 extending forwardly and downwardly, the disk being rotatably mounted on the lower end of the arm in any suitable manner, and the arm being adapted to be connected with the drag-bar shown by dotted lines in Fig. 1.

The disks are usually mounted in gang in the seeding machine, the drag bars being connected4 at their forward ends with the machine frame so as to apply the necessary draft, and the disks being so mounted that they will extend at an angle with reference to the line ot' travel.

The supporting arm 3 carries at its upper end an upright seed-tube 6, the upper end of which is adapted to receive the seed to be planted, while the lower delivery end or toe of the tube is arranged alongside of and in contact with the convex face of the disk, whereby the seed will enter the furrow formed by the disk.

It is important for the proper and effective deposit ot' the seed uniformly and with certainty in the furrow, that the delivery end oi the tube maintains close contact with the tace oi the disk, and in order that this result may be accomplished, notwithstanding any irregularity or unevenness that may exist in the torni or surit'ace oi' the disk, or its rotation, I so connect the seed tube with the supporting arm that the former may oscillatc on its longitudinal axis, the delivery end or toe of the tube being extended latorally, as at 7, 'from the main or body portion 8, so that when the tube oscillates, its toe will swing to and from the disk. The minstruction which I prefer to adopt in et iect'ing this action ot the seed tube, is to provide the upper end of the arm with an npright bea ring or socket t), in which the upper end ot' the tube is loosely mounted in such manner that it may turn or swivel therein, the interior ol the socket being formed at its upper and lower ends with inwardly extending annular shoulders 9 and 9", against which respectively abut, upper and lower external shoulders 10 and 10 on the seed tube, this construction permitting the tube to turn 'freely in the socket on a longitudinal axis, while preventing the saine troni escaping endwise :from the same. The outer edges ot the shoulders fit closely within and bear against the interior of the socket 9, and in this manner prevent the tube from wabbling in its swivcling motion, so that the proper operative relation oi. the toe of the tube to the disk will bc maintained.'

The tube is so sustained in its socket that its laterally extending toe will bear on the convex surface of the disk, the oscillation of the tube causing the toc to swing to and from the disk; and in order that the toe will be held in yielding contact with the face of the disk, I provide a torsional spring 11, which is coiled around the tube within the socket, with one end fixed to the tube, as at 12, and its opposite end extending through a diagonal opening 13 in the wall ot the socket, and engaged with one oitI a series of teeth 13n on the edge ot the opening, the said teeth being spaced apart in a direction circinnferentially of the socket. The spring applied in this manner, will tend to turn the tube on its longitudinal axis in a direction to hold the toe against the face et the disk. By engaging the end of the spring with the be seen that by the capability of the tube to oscillate in its socket, and by the action of the spring in holding the toe of the tube in contact with the disk, the toe will be caused to follow faithfully any irregularities in4 the disks surface, and in this manner preserve close contact therewith.

In order to permit the assembling of the tube in its socket, the latter is formed in two separable sections 9c and 9d, the section 9C being iXed to the supporting arm 3, and t-he section 9d being connected detachably with section 9a by means of fastening bolts 9e passing through ears on the sections.

While I have in the accompanying drawings shown my invention as embodied in the form which I prefer to adopt, and which has been found in practice to answer to a satisfactory degree the ends to be attained, it will be understood that the invention is not to be limited to any particular details of construction except in so far as such limitations are specified in the claims.

Having thus described my invention, what I claim is l. In a grain drill and in combination with a support or frame provided with an upright socket, an opening disk sustained by said support, a seed tube mounted in the socket in the support to swivel around the longitudinal axis of the tube, and means for holding said tube against endwise motion in both directions, said means serving also to guide the tube in its swiveling motion.

2. In a grain drill and in combination with a support or frame provided with a socket having a plurality of teeth spaced apart in a direction circumferentially of the socket, an opening disk sustained by the support, a seed tube mounted to swivel in the socket, and a spring encircling the' tube within the socket with one end connected with the tube and its opposite end adapted to be engaged with any of the notches in the socket; whereby the tension of the spring may be adjusted.

3. In a grain drill and in combination with a frame or support provided with a socket having inwardly extended shoulders at its upper and lower ends, an opening disk sustained by the support, and a seed tube mounted to swivel in said socket, said tube being provided with outwardly extending flanges in position to abut against the said shoulders and bear against the interior of the socket, whereby endwise motion of the tube within the socket will be prevented and it will be guided in its swiveling motion.

In testimony whereof I hereunto set my hand this 18th day of May, 1910, in the presence of two attesting witnesses.

OTTO Gr. RIESKE. 1Witnesses:

A. B. ALLEN, F. S. PRESTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

